>> I import a CSV file like this:>> Name, Sex, Age, ... , ...> Tom, M, 12, ... ,...> Bob, M, 13,> Lily, F, 11,> Jack, M, 14,> Micheal, M, 10,> ..>> It become a list and I call it datalist. Then I want only extract the Name> and Age for each child in the list. I did some thing like:>> ColumPos => Map[#[[2]] &,> Map[Position[datalist, #] &, {"Name",> "Age"}], {2}]> Map[Extract[#, ColumPos] &, datalist]>> Yes, it works. But the code are bit complicated. Any one has any idea to> get it done in a more efficient way?>>>